solving trigonometric equations, algebra homework help

the questions for the work pad I need workings out typed.

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Lesson 9: Solving Trigonometric Equations Using Inverses
Algebra 2 B Unlt 7: Periodic Functions and Trigonometry
Getting Started
Instruction
Activity
Review
Assessment
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13. Verify the identity. Justify each step. (2 points)
tan + cot =
1
e
sin cos e
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14. A weight is attached to a spring that is fixed to the floor. The equation , = 7cos
h
ग
models
(4 points)
(64)
the height, h, in centimeters after t seconds of the weight being stretched and released.
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connexus.com
Lesson 9: Solving Trigonometric Equations Using Inverses
Algebra 2 B Unlt 7: Periodic Functions and Trigonometry
Getting Started
Instruction
Activity
Review
Assessment
For questions 4 and 5, what values for a (U SOS2) satisfy the equation?
9. 4cos e +1=2cos e (1 point)
이
os
27 47
3.3
IT SIT
6
77 117
66
ОО
Or 67
3′ 3
10. cosa – tan ecos e = 0 (1 point)
00,
52
TT,
4.
4
054
T 5
4 4
ग π 37 37 77
2. 4
77 37 117
3
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6
2.
6
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connexus.com
Lesson 9: Solving Trigonometric Equations Using Inverses
Algebra 2 B Unit 7: Periodic Functions and Trigonometry
Getting Started
Instruction
Activity
Review
Assessment
11. For a standard-position angle determined by the point (x, y), what are the values of the
trigonometric functions?
(1 point)
For the point (16, 12), find sine and cose.
Ocos e
16
20
12
sin A =
20
20
cose
12
Il
sin e
12
=
20
20
cose
16
11
16
sin =
12
16
cose =
12
16
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Getting Started
Instruction
Activity
Review
Assessment
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or drag and drop a file into this area – 20 MB limit
14. A weight is attached to a spring that is fixed to the floor. The equation
h
7cos models
(4 points)
the height, h, in centimeters after t seconds of the weight being stretched and released.
a. Solve the equation for t.
b. Find the times at which the weight is first at a height of 1 cm, of 3 cm, and of 5 cm above
the rest position, Round your answers to the nearest hundredth.
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Algebra 2 B Unit 7: Periodic Functions and Trigonometry
Instruction
Activity
Review
Assessme
tan” = sina x see
corda sea tano
5. Use the unit circle to find the inverse function value in degrees. (1 point)
sin
30
60°
240°
150
6. Use the unit circle to find the inverse function value in degrees. (1 point)
120°
60°
30
For questions 2 and 3, use a calculator to find the values of the inverse function in radians.
12
A
22